BR102020016623A8 - COPPER EXTRACTION FROM SULFECTED ORES BY HYDROCHEMICAL METHOD WITH THE USE OF MNO2 AS OXIDATION CATALYST - Google Patents
COPPER EXTRACTION FROM SULFECTED ORES BY HYDROCHEMICAL METHOD WITH THE USE OF MNO2 AS OXIDATION CATALYSTInfo
- Publication number
- BR102020016623A8 BR102020016623A8 BR102020016623A BR102020016623A BR102020016623A8 BR 102020016623 A8 BR102020016623 A8 BR 102020016623A8 BR 102020016623 A BR102020016623 A BR 102020016623A BR 102020016623 A BR102020016623 A BR 102020016623A BR 102020016623 A8 BR102020016623 A8 BR 102020016623A8
- Authority
- BR
- Brazil
- Prior art keywords
- mno2
- ores
- copper
- sulfected
- sulfur
- Prior art date
Links
- 229910052802 copper Inorganic materials 0.000 title abstract 6
- 239000010949 copper Substances 0.000 title abstract 6
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 title abstract 5
- 230000003647 oxidation Effects 0.000 title abstract 5
- 238000007254 oxidation reaction Methods 0.000 title abstract 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- 238000000605 extraction Methods 0.000 title abstract 3
- 239000003054 catalyst Substances 0.000 title abstract 2
- 239000011572 manganese Substances 0.000 abstract 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 3
- 229910052717 sulfur Inorganic materials 0.000 abstract 3
- 239000011593 sulfur Substances 0.000 abstract 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract 2
- 239000012141 concentrate Substances 0.000 abstract 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 abstract 1
- 238000005188 flotation Methods 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 238000009854 hydrometallurgy Methods 0.000 abstract 1
- LBSANEJBGMCTBH-UHFFFAOYSA-N manganate Chemical compound [O-][Mn]([O-])(=O)=O LBSANEJBGMCTBH-UHFFFAOYSA-N 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052763 palladium Inorganic materials 0.000 abstract 1
- 239000010970 precious metal Substances 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
EXTRAÇÃO DE COBRE DE MINÉRIOS SULFETADOS POR VIA HIDROQUÍMICA COM USO DE MnO2 COMO CATALIZADOR DE OXIDAÇÃO. Esta patente relata o processamento direto de concentrados de sulfeto de cobre, por processo hidrometalúrgico, onde o enxofre (S) do complexo sulfetado é prioritariamente oxidado e usado como fonte de sulfato depois de passar por processos intermediários de oxidação. Minérios com 1-a-2% de Cu são concentrados por flotação e atingem concentrações finais médias de 20-30% de Cu. Estes concentrados são submetidos a oxidação seletiva do elemento enxofre, via ação catalítica de MnO2, que transfere oxigênio para o enxofre, via formação de complexos de alta oxidação do manganês seja na forma Mn+7, Mn+6 e Mn+5 (permanganato, manganato, etc). O processo descrito nessa patente permite o processamento de cobre sem necessidade da etapa de ustulação e produção de SO2, bem como a concentração de metais preciosos tais como ouro, prata e paládio que serão ao final do processo de extração do cobre, lixiviados e extraídos.COPPER EXTRACTION FROM SULFECTED ORES BY HYDROCHEMICAL METHOD USING MnO2 AS OXIDATION CATALYST. This patent reports the direct processing of copper sulfide concentrates, by a hydrometallurgical process, where the sulfur (S) of the sulfide complex is primarily oxidized and used as a source of sulfate after undergoing intermediate oxidation processes. Ores with 1-to-2% Cu are concentrated by flotation and reach average final concentrations of 20-30% Cu. These concentrates are subjected to selective oxidation of the sulfur element, via the catalytic action of MnO2, which transfers oxygen to sulfur, via the formation of high manganese oxidation complexes, either in the form Mn+7, Mn+6 and Mn+5 (permanganate, manganate, etc.). The process described in this patent allows the processing of copper without the need for roasting and SO2 production, as well as the concentration of precious metals such as gold, silver and palladium that will be leached and extracted at the end of the copper extraction process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR102020016623A BR102020016623A8 (en) | 2020-08-14 | 2020-08-14 | COPPER EXTRACTION FROM SULFECTED ORES BY HYDROCHEMICAL METHOD WITH THE USE OF MNO2 AS OXIDATION CATALYST |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR102020016623A BR102020016623A8 (en) | 2020-08-14 | 2020-08-14 | COPPER EXTRACTION FROM SULFECTED ORES BY HYDROCHEMICAL METHOD WITH THE USE OF MNO2 AS OXIDATION CATALYST |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BR102020016623A2 BR102020016623A2 (en) | 2022-03-03 |
| BR102020016623A8 true BR102020016623A8 (en) | 2022-06-28 |
Family
ID=80742343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR102020016623A BR102020016623A8 (en) | 2020-08-14 | 2020-08-14 | COPPER EXTRACTION FROM SULFECTED ORES BY HYDROCHEMICAL METHOD WITH THE USE OF MNO2 AS OXIDATION CATALYST |
Country Status (1)
| Country | Link |
|---|---|
| BR (1) | BR102020016623A8 (en) |
-
2020
- 2020-08-14 BR BR102020016623A patent/BR102020016623A8/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| BR102020016623A2 (en) | 2022-03-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B03A | Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette] | ||
| B25A | Requested transfer of rights approved |
Owner name: LOPES E SILVA PARTICIPACOES LTDA (BR/MG) |
|
| B11A | Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing | ||
| B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |